GB/T 26689-2024冰箱、冰柜用硬質(zhì)聚氨酯泡沫塑料

ICS

83.100

CCS

G30

中華人民共和國國家標(biāo)準(zhǔn)

GB/T26689—2024

代替GB/T26689—2011

冰箱、冰柜用硬質(zhì)聚氨酯泡沫塑料

Rigidpolyurethanecellularplasticsusedinrefrigeratorsandfreezers

2024-08-23發(fā)布2025-03-01實(shí)施

國家市場監(jiān)督管理總局發(fā)布

國家標(biāo)準(zhǔn)化管理委員會

GB/T26689—2024

目次

前言

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1

范圍

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2

規(guī)范性引用文件

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3

術(shù)語和定義

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4

分類

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5

要求

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5.1

外觀

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5.2

物理力學(xué)性能

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5.3

高低溫循環(huán)性能

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6

試驗(yàn)方法

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6.1

狀態(tài)調(diào)節(jié)

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6.2

外觀

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6.3

導(dǎo)熱系數(shù)

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6.4

壓縮強(qiáng)度或形變10%壓縮應(yīng)力

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6.5

尺寸穩(wěn)定性

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6.6

表觀芯密度

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6.7

閉孔率

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6.8

吸水率

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6.9

高低溫循環(huán)性能

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6.10

粘結(jié)強(qiáng)度

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7

檢驗(yàn)規(guī)則

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7.1

檢驗(yàn)分類

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7.2

組批、抽樣

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7.3

判定規(guī)則

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4

附錄A（資料性）

粘結(jié)強(qiáng)度的測定方法

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A.1

試驗(yàn)儀器

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A.2

試樣制備

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A.3

試驗(yàn)步驟

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A.4

試驗(yàn)結(jié)果

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5

Ⅰ

GB/T26689—2024

前言

本文件按照GB/T1.1—2020《標(biāo)準(zhǔn)化工作導(dǎo)則第1部分：標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)

定起草。

本文件代替GB/T26689—2011《冰箱、冰柜用硬質(zhì)聚氨酯泡沫塑料》，與GB/T26689—2011相

比，除結(jié)構(gòu)調(diào)整和編輯性改動外，主要技術(shù)變化如下：

a）增加了“術(shù)語和定義”一章（見第3章）；

b）更改了產(chǎn)品分類（見第4章，2011年版的第3章）；

c）更改了產(chǎn)品外觀要求（見5.1，2011年版的4.1）；

d）將“導(dǎo)熱系數(shù)”更改為“初始導(dǎo)熱系數(shù)”，并更改了相應(yīng)指標(biāo)要求（見5.2，2011年版的

4.2）；

e）增加了長期導(dǎo)熱系數(shù)性能要求和檢測方法（見5.2和6.3）；

f）更改了壓縮強(qiáng)度或形變10%壓縮應(yīng)力的要求（見5.2，2011年版的4.2）；

g）更改了表觀芯密度的指標(biāo)要求（見5.2，2011年版的4.2）；

h）更改了導(dǎo)熱系數(shù)的試驗(yàn)方法（見6.3，2011年版的5.3）；

i）更改了出廠檢驗(yàn)和型式檢驗(yàn)的檢驗(yàn)項(xiàng)目（見7.1，2011年版的6.1）；

j）更改了產(chǎn)品抽樣要求（見7.2.2，2011年版的6.2.2）；

k）更改了判定規(guī)則（見7.3，2011年版的6.3）；

l）將“粘結(jié)強(qiáng)度的測定方法”由規(guī)范性附錄更改為資料性附錄（見附錄A，2011年版的附錄A）。

請注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機(jī)構(gòu)不承擔(dān)識別專利的責(zé)任。

本文件由中國輕工業(yè)聯(lián)合會提出。

本文件由全國塑料制品標(biāo)準(zhǔn)化技術(shù)委員會（SAC/TC48）歸口。

本文件起草單位：北京工商大學(xué)、海信容聲（廣東）冰箱有限公司、紅寶麗集團(tuán)股份有限公司、萬

華化學(xué)集團(tuán)股份有限公司、河北亞東化工集團(tuán)有限公司、天長市伯士的環(huán)保新材料有限公司、美的集團(tuán)

股份有限公司、山東澳帆新材料有限公司、中化藍(lán)天霍尼韋爾新材料有限公司、杭州崇耀科技發(fā)展有限

公司、紹興市辰星聚氨酯有限公司、山東億博潤新材料科技有限公司、山東聯(lián)創(chuàng)聚合物有限公司、北京

建筑材料檢驗(yàn)研究院股份有限公司、江蘇江化聚氨酯產(chǎn)品質(zhì)量檢測有限公司、中山大學(xué)、山東大學(xué)、

運(yùn)城學(xué)院。

本文件主要起草人：陳倩、胡鋒、邢益輝、朱霞林、袁海順、周洪福、古浩賢、趙士虎、石慶慶、

余小貫、宋新鋒、余仁根、郝德開、孔莉、劉晶、吳昊、翟文濤、王桂龍、王杰。

本文件及其所代替文件的歷次版本發(fā)布情況為：

—2011年首次發(fā)布為GB/T26689—2011；

—本次為第一次修訂。

Ⅲ

GB/T26689—2024

冰箱、冰柜用硬質(zhì)聚氨酯泡沫塑料

1范圍

本文件界定了冰箱、冰柜用硬質(zhì)聚氨酯泡沫塑料的術(shù)語和定義，規(guī)定了分類、要求、檢驗(yàn)規(guī)則，并

描述了相應(yīng)的試驗(yàn)方法。

本文件適用于以組合多元醇和多異氰酸酯為主要原料發(fā)泡生產(chǎn)的冰箱、冰柜用硬質(zhì)聚氨酯泡沫塑

料。

2規(guī)范性引用文件

下列文件中的內(nèi)容通過文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中，注日期的引用文

件，僅該日期對應(yīng)的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有的修改單）適用

于本文